What is the Rainy day club?

[early_morning]

I've been curious about this subject for sometime now. I know records and items were made and sold, was the Rainy Day Club an event that happened in 1973?

[Neighborhood Archive]

My best understanding is that it was a mail-in offer rather than a public merchandise option. Those who signed up would receive semi-regular mailings including records and activities. Here is a list of everything I know of to this point associated with the Rainy Day Club:

http://www.neighborhoodarchive.com/merch/other/rainy_day_club/index.html